1952346- Increasing of parameter value for alert/nbr_context without effect

Symptom

You are not able to create a GRMG scenario or add a remote database to be monitored in RZ20. After creating and running a certain number of GRMG scenarios it is not possible to start the newly added scenarios. After deleting one scenario it is possible to start the next one. You set the parameters as described in note 731165, but the value for alert/nbr_context cannot be changed to a value higher than 254.